D-Link DGS-1250 Emulator - Page 380

mls qos cos

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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide Example This example shows how to specify a class map called "class-home-user" and configures the access list named "acl-home-user" to be used as the match criterion for that class. Switch# configure terminal Switch(config)# class-map class-home-user Switch(config-cmap)# match access-group name acl-home-user Switch(config-cmap)# This example shows how to specify a class map called "cos" and specifies that the CoS values of 1, 2, and 3 are match criteria for the class. Switch# configure terminal Switch(config)# class-map cos Switch(config-cmap)# match cos 1,2,3 Switch(config-cmap)# 51-4 mls qos cos This command is used to configure the default Class of Service (CoS) value of a port. Use the no form of this command to revert to the default settings. mls qos cos {COS-VALUE | override} no mls qos cos Parameters COS-VALUE override Specifies to assign a default CoS value to a port. This CoS will be applied to the incoming untagged packets received by the port. Specifies to override the CoS of the packets. The default CoS will be applied to all incoming packets, tagged or untagged, received by the port. Default By default, this CoS value is 0. Command Mode Interface Configuration Mode. Usage Guideline When the override parameter is not specified, the CoS of the packets will be the packet's CoS if the packets are tagged, and will be the port default CoS if the packet is untagged. When the override parameter is specified, the port default CoS will be applied to all packets received by the port. Use the override parameter when all incoming packets on certain ports deserve a higher or lower priority than packets that enter from other ports. Even if a port was previously set to trust DSCP or CoS, this command overrides that trust state, and all CoS values on the incoming packets are changed to the default CoS value that is configured with the mls qos cos command. If an incoming packet is tagged, the CoS value of the packet is modified at the ingress port. 377

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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide
377
Example
This example shows how to
specify a class map called “class
-home-
user” and configures the access list named
“acl
-home-
user” to be used as the match criterion for that class.
Switch# configure terminal
Switch(config)# class-map class-home-user
Switch(config-cmap)# match access-group name acl-home-user
Switch(config-cmap)#
This example shows how to
specify a class map called “cos” and specifies that the CoS values of 1, 2, and 3 are
match criteria for the class.
Switch# configure terminal
Switch(config)# class-map cos
Switch(config-cmap)# match cos 1,2,3
Switch(config-cmap)#
51-4
mls qos cos
This command is used to configure the default Class of Service (CoS) value of a port. Use the
no
form of this
command to revert to the default settings.
mls qos cos {
COS-VALUE
| override}
no mls qos cos
Parameters
COS-VALUE
Specifies to assign a default CoS value to a port. This CoS will be applied to the
incoming untagged packets received by the port.
override
Specifies to override the CoS of the packets. The default CoS will be applied to
all incoming packets, tagged or untagged, received by the port.
Default
By default, this CoS value is 0.
Command Mode
Interface Configuration Mode.
Usage Guideline
When the
override
parameter is not specified, the CoS of the packets will be the packet’s CoS if the packets are
tagged, and will be the port default CoS if the packet is untagged.
When the
override
parameter is specified, the port default CoS will be applied to all packets received by the port.
Use the
override
parameter when all incoming packets on certain ports deserve a higher or lower priority than
packets that enter from other ports. Even if a port was previously set to trust DSCP or CoS, this command
overrides that trust state, and all CoS values on the incoming packets are changed to the default CoS value that is
configured with the
mls qos cos
command. If an incoming packet is tagged, the CoS value of the packet is
modified at the ingress port.